These sterling silver hook and eye crimp clasps are the perfect way to finish your leather, rubber and satin creations. This particular clasp set is made for our 4mm sizes of these materials. Simply slide the end of your 4mm rubber, satin, or leather into this crimp end and use nylon jaw pliers to flatten the crimp. For extra security try a dab of our E6000 industrial strength adhesive. Repeat this process on both sides to end your necklaces, bracelets and anklets. Get the perfect length for any design by buying our materials by the foot.